1211121200222 has 8 divisors (see below), whose sum is σ = 1821742196400. Its totient is φ = 603873801424.

The previous prime is 1211121200189. The next prime is 1211121200251. The reversal of 1211121200222 is 2220021211121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1211121200222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843398447 + ... + 843399882.

It is an arithmetic number, because the mean of its divisors is an integer number (227717774550).

Almost surely, 2^{1211121200222} is an apocalyptic number.

1211121200222 is a deficient number, since it is larger than the sum of its proper divisors (610620996178).

1211121200222 is a wasteful number, since it uses less digits than its factorization.

1211121200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686798690.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211121200222 its reverse (2220021211121), we get a palindrome (3431142411343).

The spelling of 1211121200222 in words is "one trillion, two hundred eleven billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-two".